Numbness and tingling are abnormalsensations that can occur anywhere in your body, but are often felt inyour hands, feet, arms, or legs. Since you rsymptoms have been presentfor the last 4 days without any improvement, I would recommend gettingan appointment with your physician for a detailed examination.

Here is some more inforation on what may be possibly wrong

Common Causes

There are many possible causes:

Remaining in the same seated or standing position for a long time.

Injuring a nerve supplying the body part where you feel thesensation. If you have a neck injury, for example, you may feel thesensation anywhere along your arm or hand. Similarly, a low back injurycan cause sciatica -- a sensation of numbness or tingling down the backof your leg.

Lack of blood supply to the area. For example, plaque buildup fromatherosclerosis in the legs can cause pain, numbness, and tinglingwhile walking. (This is called claudication.)

The underlying cause of numbness ortingling should be identified and then treated by your doctor. Forexample, if you have carpal tunnel syndrome or low back pain, certainexercises may be recommended.

If you have diabetes, your doctorwill discuss ways to control your blood sugars. Medications that causenumbness or tingling may need to be switched or adjusted. DO NOT makeany changes to your medications without instructions from your doctor.

Low levels of vitamin B-12 will be treated with vitamin supplements.

For multiple sclerosis, these steps can help some of the symptoms:

Exercise to maintain muscle tone. Your doctor or physical therapist can guide you and design an appropriate program.

Rest and practice relaxation techniques for improved energy level.

Avoid temperature extremes.

Because of the decrease in feeling, anumb hand or foot from any cause may be more prone to accidentalinjury. Take care to protect the area from cuts, bumps, bruises, burns,or other injury.

Reply to Gaurav Gupta's Post: I was hoping for a more in depth answer than what I've already found on free medical symptom indexes. I'm worried about the possibility of a clot or something. The numbness starts below my right knee. I still have feeling on the bottom of my foot and the back of my calf, but my shin and the top of my foot are completely dead. I have feeling in my skin, like when I touch it I can feel it on the surface but the feeling stays on the surface and it is dead underneath (muscle etc.) I have not been doing excess standing or sitting and I am not injured and I am not on meds.

Numbness is most often caused by impingement of nerves. In the case of the lower leg, I'd have the knee area looked at first and work up from there.

It could be a blood clot as well, but you would most likely have pain in the area. There might be a 'hot spot' somewhere on the leg, usually the calf. A good test is the homan's sign. While sitting point your toes up toward your nose. If there is pain, you may have a blood clot.

There will also be swelling if it's a clot.

The best thing to do to find the cause is to have a physical examination.

If any of the above blood clot symptoms apply to you, I'd get to the ER today. Better to be safe than sorry. If a clot should break loose, it could move up into your brain, heart or lungs and it would fast become a medical emergency.

I will tell you that...the things you have to go through to be an Expert are quite rigorous.

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